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Vigor's Drilling Stabilizer is made from AISI 4145 H Modified Alloy Steel .Heat treated to 285-341 Brinell Hardness and 54 Joules minimum impact value. All physical properties would be guaranteed 1" below the surface. All threads are made strictly in accordance with API 7-1 specification. Qualified to NS-1 Standard.
HARD FACING TYPE:
HF1000 Hard Facing with Crushed Carbide
HF2000 Hard Facing with Crushed Carbide with Trapizoidal Insert
HF3000 Hard Facing with Tungsten Carbide insert set in a power spray deposit
HF4000 Hard Facing with Tungsten Carbide insert set
HF5000 Hard Facing with Fused Tungsten Carbide in Nickle Chrome boron matrix
